1579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/* 2579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Copyright (C) 2007 The Android Open Source Project 3579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 4579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Licensed under the Apache License, Version 2.0 (the "License"); 5579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * you may not use this file except in compliance with the License. 6579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * You may obtain a copy of the License at 7579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 8579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 9579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 10579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Unless required by applicable law or agreed to in writing, software 11579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 12579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * See the License for the specific language governing permissions and 14579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * limitations under the License. 15579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 16579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 17579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpackage com.android.dx.rop.code; 18579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 19579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.type.StdTypeList; 20579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.type.Type; 21579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.type.TypeList; 22579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.util.IntList; 23579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 24579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/** 25579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Instruction which contains switch cases. 26579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 27579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpublic final class SwitchInsn 28579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson extends Insn { 29579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@code non-null;} list of switch cases */ 30579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson private final IntList cases; 31579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 32579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 33579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Constructs an instance. 34579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 35579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param opcode {@code non-null;} the opcode 36579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param position {@code non-null;} source position 37579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param result {@code null-ok;} spec for the result, if any 38579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param sources {@code non-null;} specs for all the sources 39579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param cases {@code non-null;} list of switch cases 40579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 41579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public SwitchInsn(Rop opcode, SourcePosition position, RegisterSpec result, 42579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson RegisterSpecList sources, IntList cases) { 43579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson super(opcode, position, result, sources); 44579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 45579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson if (opcode.getBranchingness() != Rop.BRANCH_SWITCH) { 46579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson throw new IllegalArgumentException("bogus branchingness"); 47579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 48579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 49579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson if (cases == null) { 50579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson throw new NullPointerException("cases == null"); 51579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 52579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 53579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson this.cases = cases; 54579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 55579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 56579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 57579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 58579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public String getInlineString() { 59579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return cases.toString(); 60579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 61579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 62579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 63579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 64579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public TypeList getCatches() { 65579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return StdTypeList.EMPTY; 66579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 67579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 68579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 69579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 70579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public void accept(Visitor visitor) { 71579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson visitor.visitSwitchInsn(this); 72579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 73579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 74579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 75579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 76579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withAddedCatch(Type type) { 77579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson throw new UnsupportedOperationException("unsupported"); 78579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 79579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 80579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 81579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 82579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withRegisterOffset(int delta) { 83579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new SwitchInsn(getOpcode(), getPosition(), 84579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getResult().withOffset(delta), 85579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getSources().withOffset(delta), 86579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson cases); 87579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 88579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 89579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 90579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * {@inheritDoc} 91579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 92579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * <p> SwitchInsn always compares false. The current use for this method 93579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * never encounters {@code SwitchInsn}s 94579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 95579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 96579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public boolean contentEquals(Insn b) { 97579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return false; 98579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 99579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 100579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 101579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 102579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withNewRegisters(RegisterSpec result, 103579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson RegisterSpecList sources) { 104579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 105579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new SwitchInsn(getOpcode(), getPosition(), 106579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson result, 107579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson sources, 108579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson cases); 109579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 110579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 111579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 112579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Gets the list of switch cases. 113579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 114579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @return {@code non-null;} the case list 115579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 116579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public IntList getCases() { 117579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return cases; 118579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 119579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson} 120